4045994473 has 2 divisors, whose sum is σ = 4045994474. Its totient is φ = 4045994472.

The previous prime is 4045994429. The next prime is 4045994489. The reversal of 4045994473 is 3744995404.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 4045341609 + 652864 = 63603^2 + 808^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4045994473 is a prime.

It is not a weakly prime, because it can be changed into another prime (4045994873) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2022997236 + 2022997237.

It is an arithmetic number, because the mean of its divisors is an integer number (2022997237).

Almost surely, 2^4045994473 is an apocalyptic number.

It is an amenable number.

4045994473 is a deficient number, since it is larger than the sum of its proper divisors (1).

4045994473 is an equidigital number, since it uses as much as digits as its factorization.

4045994473 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2177280, while the sum is 49.

The square root of 4045994473 is about 63608.1321294691. The cubic root of 4045994473 is about 1593.4621856730.

The spelling of 4045994473 in words is "four billion, forty-five million, nine hundred ninety-four thousand, four hundred seventy-three".